How To Fix TA209 - Generic key is too big

SAP Error Message - Details

• Message type: E = Error

• Message class: TA - Extended table maintenance (eval., Customizing, client copy)

• Message number: 209

• Message text: Generic key is too big

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TA209 - Generic key is too big ?

  The SAP error message TA209, which states "Generic key is too big," typically occurs when the key length for a generic key exceeds the maximum allowed size in the SAP system. This can happen in various contexts, such as when working with table entries, customizing settings, or during data uploads.
  Cause:
  
  Key Length Exceeded: The most common cause of this error is that the combined length of the fields used to create a generic key exceeds the maximum limit defined in the SAP system.
  Data Model Changes: Changes in the data model or structure of the tables involved may lead to inconsistencies in key lengths.
  Incorrect Configuration: Misconfiguration in the settings related to the generic key can also lead to this error.
  
  Solution:
  
  Review Key Fields: Check the fields that are being used to create the generic key. Ensure that the total length of these fields does not exceed the maximum allowed length (usually 32 characters for a generic key).
  Modify Key Structure: If possible, modify the structure of the key by reducing the number of fields or the length of the fields used in the key.
  Check Custom Code: If you are using custom ABAP code, review it to ensure that it is not generating keys that exceed the allowed length.
  Data Cleanup: If the error occurs during data uploads or migrations, ensure that the data being uploaded does not contain excessively long key values.
  Consult Documentation: Refer to SAP documentation or notes related to the specific module or transaction you are working with for any additional guidance or updates.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Transaction Codes: If the error occurs in a specific transaction, note the transaction code and check for known issues or updates related to that transaction.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered the same issue and what solutions they have found.
  Testing: After making changes, conduct thorough testing to ensure that the issue is resolved and that no new issues have been introduced.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.